A vehicle smokes when it has an oil leak, a clogged carburettor, a leak in the coolant system or is in danger of overheating. Smoke coming from the engine or the exhaust pipe is an indication there is a problem under the hood and the vehicle needs to be serviced immediately.Know More
Colored smoke can indicated where seals and valves are breaking down within the engine. Blue or gray smoke indicates valves and seals may be worn and leaking oil. Blue smoke can indicate faulty piston rings that should be changed. Black smoke indicates carburettor trouble or a dirty air filter. A clogged choke or leaky fuel injectors can cause black smoke to billow from the exhaust. White smoke indicates cracked head gaskets, a cracked engine block or that transmission fluid is entering the manifold. In such cases, the vacuum modulator may need to be replaced.
Smoke coming from under the hood suggests a larger mechanical issue. The experts at How Stuff Works state, "If the smoke is coming from under your hood, that probably means you ignored white smoke coming out of the tailpipe, and now your engine is overheating." Regular maintenance and preventative measures help keep the engine in smoke-free, working order.Learn more about Car Parts & Maintenance
Although a cracked exhaust manifold does not directly cause danger, it can indirectly be dangerous, as the issues it causes makes a car unfit to drive. Effects include increased engine emissions, poor vehicle performance and damage to an engine's components.Full Answer >
To fix an oil leak in a car, find the source of the leak, check the oil pan gasket and repair the leak as appropriate. Fixing an oil leak in a car takes a minimum of an hour and requires a car jack, jack stands and wrenches. A stop leak additive may be necessary, depending on the cause of the leak.Full Answer >
There are a variety of problems that can cause a car's idle to be rough. A rough idle is usually defined by the car idling below its normal speed, loping RPMs, a skipping sound or in a way that causes the car to shake. Idle problems can often be a clue to something more serious going on, so it is best for car owners to get them checked out.Full Answer >
If a car is hard to start, the issue is often the battery. While a dead battery does not turn the starter at all, a weak one turns it very slowly. This slow turn does not create enough compression to cause the fuel to ignite in the cylinders, making it difficult to start the vehicle.Full Answer >